I don’t think I’ll be alone saying this won’t happen, not to this community.
I know I won’t stop helping, especially newcomers or "average users" (if there is such a thing) when they do make an effort to learn and provide information helping to solve their problems. Problem solving is also a way to help improve MODx, lots of idea now implemented in the current release are born out of support questions or problems. This will remain true.
But let’s face it, the most "resource intensive" support needs are from people who actually make bucks with MODx (or at least, have an extensive use of the software). We have specific needs, which often mean specific answers, and guess what ? It takes time of providing case by case answers and customized solutions. Keep in mind that 80% users won’t need to go this far and will be perfectly fine with support from the "free" boards.
I am one of those who make a living out of selling MODx services and as such I find it normal to donate and/or to give time in return, I’ll find it understandable that the people who get a lot out of MODx (usually what would have taken much more resources to accomplish the same thing with another tool) give back a reasonnable amount to access high-level support (which wouldn’t be possible in the first place without this kind of premium membership anyway !).
Just chek Ryan’s post : those forums won’t adress the same issues the current forums do, they’ll allow you to strech MODx to its full power and possibly help you provide far better services to your client or end users. I sure am going to use private tickets when needed, since many things are out of my skill range. I’ll be glad to be able to rely on the best there are around to take care of things
There is no question whatsoever about the team’s comittment to the open source model. Having commercial support doesn’t mean (of course) dual licensing nor commercial software (and by the way Movable Type can’t be compared here). Neither does it mean the (lively) forums will stop being helpful.
The only thing that will happen witht the commercial support is : webdesigners and webdeveloppers will know if they choose to sell MODx based services they can rely on high quality / advanced support from the people who made (or heavily contributed to) the software and its extensions. Clients will know that people who sell MODx based services are backed up by the most skilled : I say, great opportunity !